Home Additions Experts
Expert Home Additions Services
GS Construction & Remodeling specializes in professional Home Additions. As a father-son team, we bring decades of combined experience to every project.
From the first walkthrough to the last punch-list item, Greg or Patryk runs your Home Additions project themselves. That means a scope written out line by line instead of one number, permits pulled and handled with your village, and the same faces on site rather than a crew you've never met.
- Specialized Home Additions expertise
- On-site supervision for every project
- Transparent pricing with no surprises
- Quality craftsmanship guaranteed
"Your Home Additions project deserves the best—we deliver it."
Neighborhoods & landmarks near our Mundelein home additions
University of Saint Mary of the Lake, Mundelein High School, Carmel Catholic High School, Diamond Lake, Loch Lomond, Kracklauer Park, Barefoot Bay Family Aquatic Center, Steeple Chase Golf Club, Metra North Central Service station
Neighborhoods we work in
- Steeple Chase
- Cambridge Countryside
- Hawley Manor
- Diamond Lake
- Fairhaven
- Longmeadow
- Canterbury Fields
- Ivanhoe Club Estates
Home additions in Mundelein, IL
Expanding your Mundelein home often means addressing the limitations of its original footprint, whether it’s a mid-century ranch or a 1990s two-story. For ranches built in the 1950s, a common addition extends the rear or side to create larger family rooms, new master suites, or expand existing kitchens with dedicated dining areas. Many of these homes, with their original smaller bedrooms and more compartmentalized layouts, benefit significantly from the increased square footage and improved spatial flow an addition provides. The later two-story homes, while more contemporary, frequently see additions that add garages, expand master bathrooms, or create dedicated home offices as family needs evolve. These projects fundamentally change how families use their space, adapting older structures to modern living patterns and preferences.
What Mundelein homeowners ask for
Mundelein homeowners often request single-story rear additions to expand living areas or add primary bedroom suites to their 1950s ranches, addressing the need for more private space. For 1990s two-story homes, multi-car garage additions or second-story expansions over existing garages are popular for additional bedrooms, bonus rooms, or expanded master suites. Side additions are also common, seamlessly integrating new square footage while respecting existing lot lines and neighborhood aesthetics.
About Mundelein
Mundelein's housing landscape tells a story of two distinct growth spurts, a narrative GS Construction understands intimately. This means homes range from mid-century ranches and split-levels to newer two-story subdivisions, each offering unique remodeling opportunities.
The village experienced its first significant boom in the 1950s, more than tripling its population. This era brought a proliferation of ranches and split-levels, a style still prevalent today, including the charming homes within Loch Lomond, a private-lake subdivision built around a 75-acre lake created in 1955. The 1990s marked Mundelein's second major expansion, adding nearly 10,000 residents as newer two-story subdivisions spread across the village. GS Construction regularly tackles whole-home updates and additions around Diamond Lake on the village's south side, where a mix of both older and newer homes can be found. Families in Mundelein are well-served educationally by Mundelein High School District 120 and five elementary districts, with Carmel Catholic High School also a prominent institution. The convenience of weekday Metra North Central Service trains to Chicago from the downtown station next to Village Hall makes the area appealing to commuters, further solidifying the demand for modern, functional homes.
The 1950s ranches and split-levels, prevalent in areas like Loch Lomond, often have robust framing that facilitates seamless additions, though their electrical and plumbing systems may require updates to support expanded living spaces. For these mid-century homes, understanding their foundational elements is key to tying in new additions effectively. The newer two-story subdivisions from the 1990s, like those around Diamond Lake, typically feature more open-concept designs, which can influence how additions are integrated to maintain spatial flow. While Mundelein lacks extensive historic districts with strict appearance reviews, the village values maintaining neighborhood aesthetics, so new exterior changes must consider existing styles. Proper drainage and basement waterproofing are crucial planning details for additions in areas prone to flooding, ensuring the integrity of new foundations. The village's standard permit and inspection process for significant remodeling projects ensures all additions comply with local building codes.
For home additions, the Village of Mundelein's Building Department reviews plans for structural integrity, foundation details, new roof ties, and exterior material matching. GS Construction & Remodeling manages the entire permit application process, including plan submission and coordinating all necessary building, electrical, plumbing, and fire inspections throughout the project.
How your Mundelein project runs
ProcessThe same six stages on every job — free in-home estimate through warranty.
Free in-home estimate
Greg or Patryk — the owners, not a salesperson — walk your space, take real measurements, and give you honest feedback on what your budget buys.
Itemized scope & contract
Labor, materials, demolition and disposal priced line by line, not one mystery number. Payment terms and warranty are in the written contract.
Design & selections
Bring your own designer, use our architects and designers, or choose everything yourself. Selections are scheduled ahead so lead times never stall the site.
Permits & scheduling
We pull and manage building, plumbing and electrical permits with your village — typically 1–2 weeks — and hand you a written schedule before demo day.
The build, owner-supervised
Long-standing trade partners working in sequence under daily owner supervision. Your client portal shows the schedule, change orders and current balance.
Walkthrough & warranty
We walk the finished job together, close out every punch-list item, hand over manufacturer paperwork, and your written workmanship warranty starts. Our commitment never expires.
Testimonials
Your Neighbours in Mundelein Love Us
Real reviews from homeowners. Ask us for live phone references.
GS Construction & Remodeling is the best of the best. We've hired them to work on 5 different properties (4 were extensive remodels) and continue to be thrilled with their work and have referred them to friends and family. I constantly bring to them pictures/ideas from Houzz & Pinterest and ask how we can duplicate high end looks on a budget and they pull it off - magnificently - every time. Not only do they know their craft, but they have a great design sense as well and make suggestions that always enhance the project. Their communication (providing estimates for changes as we go along, keeping in touch regarding scheduling, etc.) is excellent. They're nice people and incredibly respectful too - top notch all around.
Before & After & Timelapse
What homeowners near Mundelein say
“GS Construction & Remodeling is the best of the best. We've hired them to work on 5 different properties (4 were extensive remodels) and continue to be thrilled with their work and have referred them to friends and family. I constantly brin...”
“I don't even know where to begin, Patryk & Greg are just amazing! We hired them to remodel approximately 4000 sqft of a 1985 house which included an unfinished basement. The whole experience could not have been better. It took about 7 month...”
“Our project turned out better than we expected and as things were going along, we added more projects. Patryk, Greg and their team did a fantastic job. They were always so nice to work with, even suggesting things which was helpful. They ne...”
Home Additions stories from the blog
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A Bright, Hardworking Kitchen Renovation in Barrington, IL
This kitchen renovation in Barrington, IL, completed in 2021, shows the kind of bright, hardworking space we love to build, centered around a striking gray island.
Sep 4, 2026
Kitchen Remodel · Hoffman Estates, IL
Hoffman Estates Kitchen & Wet Bar: A Bright, Cohesive Renovation
We transformed a kitchen, wet bar, and living room in Hoffman Estates, IL, creating a bright, updated space with white shaker cabinets and granite counters.
Sep 4, 2026
Kitchen Remodel · Palatine, IL
Palatine Kitchen Renovation: Dark Wood, Granite, and a Mosaic Accent
This Palatine kitchen renovation showcases rich dark wood cabinetry, elegant granite countertops, and modern stainless steel appliances.
Sep 4, 2026
Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your Mundelein permit will add in our permit guide.
Completed projects around Mundelein
GS Construction crews have completed 97 projects within 10 miles of Mundelein — part of 429 completed projects across 69 Chicago-area ZIP codes. The map below shows real project density from our records, not a service-area claim.
More Remodeling Services in Mundelein
Contact GS Construction
Let's Build Beautiful Spaces Together
GS Construction is a father-and-son construction company, and home additions in Mundelein is work Greg and Patryk run themselves. Expect clear communication, quality craftsmanship, and a straightforward plan—reach out today to schedule a free in-home consultation and get a detailed estimate and honest feedback.
- Telephone
- (224) 735-4200
- [email protected]
- Service Area
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Service Area
Mundelein and surrounding Chicagoland areas